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English 19 Public

Sac fungi

Study Slideshow

What is the ploidy of dikaryotic hyphae?

n+n

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What are the two informal groups of fungi?

Deuteromycetes and yeasts

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What are the two types of mutualistic relationships that form in fungi?

Lichen symbiosis and mycorrhizal symbiosis

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Why is fungi important? List three.

Food source, medicine, lichenized fungi, yeast for cultivating food/beverages, mycorrhizal symbiosis, rusts, smuts, and mycosis.

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List three features of true fungi

Closed mitosis, decomposers, break down lignin via cellulase, have hyphae, reproduce via spores, and chitin in cell walls.

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What is the common name for acomycetes?

Sac/cup fungi

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What is the mycelium of true fungi made out of?

Septate hyphae

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What type of consumers are fungi and how do they get their food?

Heterotrophs, secrete enzymes which breaks down organic matter which can then be absorbed.

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What is the life cycle of true fungi and what is unique about it?

Haplontic with distinct dikaryotic phase (n+n)

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What is an ascocarp or ascoma?

Fruiting body (mushroom) of an ascomycete

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What occurs within the ascorcarp?

Sexual reproduction and spore dispersal

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What is it called when the protoplasm of cell fuses, but not the nuclei?

Plasmogamy

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What does a plasmogamy create?

Two separate haploid nuclei that are twice their normal size. Characteristic of dikaryotic cells.

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What are the names of the male and female gametangia?

Antheridium and Ascogonium

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What is an ascus?

Specialized single-celled sporangium in Ascomycota

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What is the layer where asci reside?

Hymenium

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